We adopt the scheme outlined in the complexity
signature section. An unconstrained view can not be accessed by
the user, but the formulas to find the order of an operation for a bimap
hold with the following definitions. The complexity signature of a unconstrained_set_of view is:

Views cannot be serialized on their own, but only as part of the bimap into which they are embedded.
In describing the additional preconditions and guarantees associated
to list_of views with
respect to serialization of their embedding containers, we use the concepts
defined in the bimap
serialization section.

Operation: saving of a bimap b to an output archive (XML archive)
ar.

Requires: No additional requirements
to those imposed by the container.

Operation: loading of a bimap b' from an input archive (XML
archive) ar.

Requires: No additional requirements
to those imposed by the container.